Em7 - 022033
Asus4 - x02233
Cadd9 - x32033
G - 320033
G/F# - 200033
G/B - x2x033

I mapped out all the chord changes, but a lot of them are a single strum used to walk up or down
between chords. For example, the G/B is a single walk up between the Asus4 and Cadd9,
and the G to Em7 is the repeating little riff throughout - a quick strum of the G, a quick strum of
the Em7, then ringing out the Em7.

If any of this needs clarification, feel free to ask, but it's really pretty easy.

[Intro]

Em7 Asus4 Cadd9 Asus4 G Em7 G Em7 (x2)

[Verse 1]

Em7              Asus4
Got them pretty road cases
   Cadd9
Protect our asses
    Asus4
protect our faces
    G Em7
protect our guitars
G Em7
protect our amps
Em7             Asus4
Got them pretty road cases
Cadd9             Asus4         G Em7              G Em7
throw them out an airplane and they'll just bounce

[Verse 2]

Asus4                            G/B
Paint our name on them road cases
Cadd9
stencil and white spray paint
  G
"Drive-by Truckers" on every one
   G/F#
or maybe just "DBT"
Asus4                        G/B
Get ourselves a big tour bus
Cadd9
maybe even an airplane
G
Fly around the world and back
G/F#
Hope it don't run out of gas

[Refrain]

Em7             Asus4      Cadd9   Asus4   G Em7  G Em7
Got them pretty road cases
Em7             Asus4      Cadd9   Asus4   Cadd9 G/B Asus4 G/B  Em7
Got them pretty road cases

[Verse 3]

    Asus4                          G/B
Someday we'll sell them road cases
     Cadd9
when we don't need them anymore
   G
To pay off that big cocaine dealer
    G/F#
the only thing they're useful for
    Asus4                          G/B
One day we'll sell them road cases
     Cadd9
when we don't need them anymore
     G
When we outlive our usefulness
    G/F#                            Asus4  G/B  Cadd9  G  G/F#
The only thing them things is useful for
   Asus4                  G/B   Cadd9   G   G/F#
To pay off that big crack dealer

[Interlude]

G Em7 (x8)

[Outro]

Em7             Asus4      Cadd9   Asus4   Em7  G  Asus4  Em7
Got them pretty road cases